1.spring配置resttemplate
<!--管理RestTemplate-->
<bean id="restTemplate" class="org.springframework.web.client.RestTemplate"></bean>
2.通用工具类
package com.yh.finance.purchase.utils;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.yh.finance.purchase.exception.PurchaseException;
import net.sf.json.JSONArray;
import org.apache.commons.lang3.StringUtils;
import org.springframework.http.*;
import org.springframework.web.client.RestTemplate;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
public class RestTemplateUtils {
private static MediaTypemediaType = MediaType.APPLICATION_JSON_UTF8;
private static int successCode =200;
private static StringmsgCodeLOMS ="msgCode";
private static StringsuccessCodeLOMS ="1";
private static StringdataLOMS ="data";
private static StringmessageLOMS ="message";
public static ListsendHttpRequest(RestTemplate restTemplate, String url, P param, Class object) {
return sendHttpRequest(restTemplate,url,param,null,object);
}
public static ListsendHttpRequest(RestTemplate restTemplate, String url, List
param, Class object) {
return sendHttpRequest(restTemplate,url,null,param,object);
}
/**
* 发送http json格式参数请求
* @param restTemplate
* @param url http地址
* @param param1 参数
* @param param2 list参数
* @param object 返回类型
* @param <T> 返回类型
* @param <P> 参数类型
* @return
*/
public static ListsendHttpRequest(RestTemplate restTemplate, String url, P param1, List
param2, Class object) {
HttpHeaders headers =new HttpHeaders();
//定义请求参数类型，这里用json所以是MediaType.APPLICATION_JSON
headers.setContentType(mediaType);
//RestTemplate带参传的时候要用HttpEntity<?>对象传递
ResponseEntity entity =null;
if(param1 !=null && param2 ==null) {
HttpEntity
queryRequest =new HttpEntity<>(param1, headers);
//---------参数转json---------------
System.out.println("--------------参数转json--------------------");
System.out.println(JSON.toJSONString(param1));
System.out.println("--------------------------------------------");
//----------------------------------------------
entity = restTemplate.postForEntity(url, queryRequest, String.class);
}else if(param2 !=null && param1 ==null) {
HttpEntity> queryRequest =new HttpEntity<>(param2, headers);
//---------参数转json---------------
System.out.println("--------------参数转json--------------------");
System.out.println(JSON.toJSONString(param2));
System.out.println("--------------------------------------------");
//----------------------------------------------
entity = restTemplate.postForEntity(url, queryRequest, String.class);
}else if (param1 ==null && param2 ==null){
HttpEntity
queryRequest =new HttpEntity<>(null, headers);
entity = restTemplate.postForEntity(url, queryRequest, String.class);
}else{
throw new PurchaseException("请输入正确的参数");
}
HttpStatus httpStatusCode = entity.getStatusCode();
int statusCode = httpStatusCode.value();
List list =new ArrayList<>();
//如果返回成功
if(statusCode ==successCode) {
String body = entity.getBody();
Map jsonMap = JSONObject.parseObject(body,Map.class);
if(jsonMap !=null){
String msgCode = (String) jsonMap.get(msgCodeLOMS);
String message = (String) jsonMap.get(messageLOMS);
if(StringUtils.isNotBlank(msgCode) && msgCode.equals(successCodeLOMS)) {
JSONArray jsonArray =null;
if(jsonMap.get(dataLOMS) !=null) {
jsonArray = JSONArray.fromObject(jsonMap.get(dataLOMS));
}
if(jsonArray !=null && jsonArray.size() >0) {
list = JSONArray.toList(jsonArray, object);
}
}else{
throw new PurchaseException(message);
}
}else{
throw new PurchaseException("LOMS接口调用异常");
}
}else{
throw new PurchaseException("LOMS接口调用异常");
}
return list;
}
}
3,调用工具类
//集单提交接口地址
String url = Config.getString("submitCollectLOMS");
RestTemplateUtils.sendHttpRequest(restTemplate,url,collectPurchaseReqLOMSList,CollectPurchaseLOMS.class);
